psychological

1[usually before noun]connected with a person's mind and the way in which it worksthe psychological development of childrenAbuse can lead to both psychological and emotional problems.Her symptoms are more psychological than physical (= imaginary rather than real).Victory in the last game gave them a psychological advantage over their opponents.a psychological novel (= one that examines the minds of the characters)

2[only before noun]connected with the study of psychologypsychological research